How to NATURAL sort a vector or data frame* by row* , in ascending order ?
V1 V2 V3 V4 i1 5.000000e-01 1.036197e-17 4.825338e+16 0.00000000 i10 4.001692e-18 1.365740e-17 2.930053e-01 0.76973827 i12 -1.052843e-17 1.324484e-17 -7.949081e-01 0.42735000 i13 2.571236e-17 1.357336e-17 1.894325e+00 0.05922715 i2 -5.630739e-18 1.638267e-17 -3.437010e-01 0.73133282 i3 4.291387e-18 1.207522e-17 3.553879e-01 0.72257050 i4 1.472662e-17 1.423051e-17 1.034863e+00 0.30163897 i5 5.000000e-01 1.003323e-17 4.983441e+16 0.00000000 i6 5.147966e-18 1.569095e-17 3.280850e-01 0.74309614 i7 1.096044e-17 1.555829e-17 7.044760e-01 0.48173041 i8 -1.166290e-18 1.287370e-17 -9.059482e-02 0.92788026 i9 1.627371e-17 1.540567e-17 1.056345e+00 0.29173427 recmeanC2 9.275880e-17 6.322780e-17 1.467057e+00 0.14349903 NA NA NA NA recmeanC3 1.283534e-17 2.080644e-17 6.168929e-01 0.53781390 recmeanC4-3.079466e-17 2.565499e-17 -1.200338e+00 0.23103743 I want a sequence of rows as :-- *recmeanC2 ,recmeanC3,recmeanC4* and the *NA row in the third position from the top*(presently it's third from down) -- Thanks Moumita [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.